Democrats are already preparing for a possible 2020 presidential bid by Vice President Mike Pence, with a major group dedicating staff — including on the ground in Indiana — to dig up dirt on him, amid rumblings that Pence is positioning himself for a run.

American Bridge 21st Century — a Democratic opposition super PAC and nonprofit funded by liberal megadonors — is leading the effort, which started earlier this summer and kicked into high gear following a New York Times story reporting on Pence’s “shadow campaign.”

The vice president has denied having intentions to run, but he has been meeting with top donors and has set up a leadership PAC that has already raised $540,000, as President Trump continues to make comments on race and other issues that are making Republicans increasingly uncomfortable.